Self-lubricating carriage-bearing.



K No. 757,154.

PATENTED AUG. 9, 1904. i G. W. NICKERSON.

SELF LUBEQEC-AIING CARRIAGE BEARING.

A?PLIOATIO! FILED HAY 16. 1904 '2 is a cross-sectional view on the tom of'the recess 1;.

UN TED STATES Patented August 9, 1904.

PATENT QFFICF- SELF-'LUBR'IOATING CARRIAGE-BEARING.

SPE CIFICATION forming part of Letters Patent No. 767,164, dntedAug'ust 9, 190%. Application filc'd May 16, 1904. Serial No. 208.073. (F0 model.)

To all who; it may concern:

Be it known that l. (iEtmHl-I \l'. NlCKl-IHSON. of \Velllleet. county of liarnstable, State of Mas achusetts. have invented an improvement in Self-'Imbricating (arriage-Bearings, of which th f llowing description. in connection with the acctmipmiying' drawings. is a specification, like characters on the drae lugs representing like parts.

My invention relates to a form of self-lubricating hearing which is especially applicableto the wheels of carriages, and has for its object to provide a self-luln'icating attachment which can be conveniently applied to the wooden hub of an ordinary carriage-wheel. said attachment being adapted to be supplied with oil conveniently while the wheel is on the axle and to contain enoughoil, which it supplies gradually to the bearing, to keep the hearing thoroughly lubricated fora long time. 1 accomplish these objects by providing the hub with an elongated recess leading from the axle-chamber through the usual axle-box into the hub and by providing a correspondingly-shapedoil containingcupwhichisadapt ed to be inserted in said recess andto supply oil to the wheel-axle as needed. said oil-cup beingprovided with a supply-tube which leads therefrom to the surface of the hub.

In the drawings. Figure 1 is a longitudinal sectional view on the line 1 1 of Fig. 2. Fig. line 2 2 of Fig. 1. Fig. 3 is a side elevation, and Fig. 4 a plan detail view, of the oil-chamber. Fig. 5 is a cross-sectional view on the line 5 5 of Fig. 1.

' As shown in the drawings, the usual carriage-axle r! is provided with an axle-box 71,

rotatably mounted thereon and secured in the usual wooden hub 1:. The axle-box is provided with a relatively narrow longitudinallyextending slot 1/ of suitable length, said slotpreferably extending through approximately one-half of the length of the box and terminating at a suitabledistanee from each end. Said hub is also provided with :1 correspondingly-shaped recess a, which registers with the slot 1/ and is of the same width and length. A hole a is bored through the hub to the bot- I also provide a; rectan- The outer row slot which is tilled with a felt packing e,

said packing extending a short distance beyond the inner edges of the side walls of the cup. 'lhe size of said can is such that it tits easily into recess 0' through slot so that the edge of said packing may bear-against the axle a. A n oil-supplying tubef is arranged in the hole 0 in the hub and istightly connected or soldered to the bottom or closed edge of the cup (I. The outer end of said tube is screwthreaded and adapted to be closed tiglnly with a screw-plug g of suitable form, the head of which bears against the hub, its surface being preferably flush with the surface of the hub and being provided with any suitable recesses to enable it to be removed readily with a spanncr or other device.

In placing the oil-cup in position in the hub, the slot in the axle-box and recess in the hub having been formed. the \"d]) is passed through the axlc-chai'nber and pressed into the recess, the oil-tubc f being passed into the hole 0. end of the tube f is then closed, and the cup is held in place by the cap y until the axle u is inserted in the box or while the wheel is removed from the axle.

The cup is filled with oil by simply pouring it into the tubef, the oil soaking through the felt packing to the axle and supplying it in such quantity as may be required for the proper lubrication-of the bearing, the cup containing sutlicient oil to lubricate the hearing fora long time. \Vith this arrangement, moreover, the oil is never supplied to the axle in snllicient quantities to cause the same to workout at the ends of the hub to an apple ciable extent.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In combination with a carriage-wheel hub having a longitudinal-ly-extending. slot shaped recess therein leading. from the axlechamber and terminating short. of each end thonof. a cormspomlingly-sha ml oil-cup lswitvd in said rowss and rn-m'i-naldo ihmv from through Ihv :xxlv-chainlwr. said-cup having a pair of longitudinal sidc walls connvctod at I posito odgv connocling (ho inn-rim of the cup with the axlo-rhamhor, and an alisorlwnt packing (lo ing said vdgo opening and arrangvd to lwaragainsi thesurfamoflhe wheelaxh. suhstantiallv as dcscrilml.

.2. In coznl ination with a, carriage-1x001 huh having longitndinallyextending. slotshapod recess thvrvin hauling from the axlechanilw'r and tvrminating short of vach 0nd lhoroof. a corrospowIingLV-shapml oil-cup re- Xli0\:1l)l littod in said PC0955. said cup having a pair of longitudinal side walls connoctcd at llwir ends, and at one longitudinal udgiand havinga narrow; elongated opening at its 0 hositv cdgi connecting the interior of tho cup with th axlc-chmnbvr, an ahsorlwnt packing closing said odgooponingandar 'imgcd to hem against llll surface of the \vhcehaxlo, an oiltnhc connected to said oil-cup atits closed longitudinal ml'gv. and hatling' to the surfact of lab huh. and moans for closing thiout r end of said who. sub tantially as dosrrilaxl.

3, In a nirriagv-o'hovl. tho huhhzn'ing an xixlo-lmx. said hnh having a longiuaiinallyoxtonding n-lativolv narrm. rovoss then-in. and Niixl axh hox having a longitudinal slot rcgisu-rin-g with said rwoss and terminating short of the ends of said box. a cup in crli lo in sai l n-cox through the :IXlP'ClNUH WI and said slot of tho axlv-hox. said cop opvning into mid chaznlwi and liming an ahsorl cnt packing arrangvd to close its opvning and to l oar against tla a'xlv. an oil-lulw connoctcd to said (up and passing through the hub. and a can closing said (aim and lnrai'ing zzgainsi tho huh to support tho cup in said foot, sullstantially as dc-scrilwd.

In testimony whoroof i haw signod my name to this s a-cilicalion in the prosvncoof two snhsribing \vitnos os.

' GEORGE \Y. XICKERSOX.

\Vitnes 'esz L. H. ARRIMAX, Tnmus Kmn'. 

